If i'm not in the right category for this post, pardon me, and feel free to move it.
First of all, I bought my build some weeks ago.
My build consist of:
Power Supply: Newegg.ca - Antec TruePower New TP-750 750W Continuous Power ATX12V V2.3 / EPS12V V2.91 SLI Certified CrossFire Ready 80 PLUS BRONZE Certified Active PFC "compatible with Core i7/Core i5" Power Supply
Processor: Newegg.ca - Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 3000 BX80623I52500K
Motherboard: Newegg.ca - ASRock Z68 Extreme3 Gen3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
Video card: Newegg.ca - MSI N560GTX-Ti Twin Frozr II 2GD5/OC GeForce GTX 560 Ti (Fermi) 2GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Heatsink: Newegg.ca - COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler Compatible with latest Intel 2011/1366/1155 and AMD FM1/AM3+
Hard drive: Newegg.ca - Seagate Barracuda ST500DM002 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Memory: Newegg.ca - G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-8GBRL
DVD-Writer: Newegg.ca - ASUS 24X DVD Burner - Bulk 24X DVD+R 8X DVD+RW 12X DVD+R DL 24X DVD-R 6X DVD-RW 16X DVD-ROM 48X CD-R 32X CD-RW 48X CD-ROM Black SATA Model DRW-24B1ST/BLK/B/AS - CD / DVD Burners
After looking at lots of videos on the internet, I took 5-6 hours of my time, doing very carefully my computer.
At first, the test build I made outside the case worked perfectly.
But when I putted everything inside the box, plugged everything, the power wouldn't turn on.
Seems like the power-supply was dead.
I ordered another one, and I shipped that one back.
Today, I received that power-supply. I plugged only the 20+4 pins in the motherboard, and everything was fine.
After that, I plugged everything in my computer (fans, hdd, video card, etc). I turned on the computer, and everything worked perfectly!
So I looked for my Windows 7 CD, I putted it in the dvd-burner, turned back to do something quick, and when I looked back at my computer, it was turned off. I pressed the power button, and nothing happened.
Sometimes, when I press the power button, the fans would work for maybe half a second and then dead nothing.
So I'd like to know, if it is possible that i'm unlucky enough to get 2 dead power-supply in a row, or if maybe something else is going wrong in my computer, or if I did something wrong, or if something in my build is incompatible or something..
Thanks in advance, and sorry about the quality of my english, i speak french most of the time.
EDIT: I tried powering up the computer with the power button on the motherboard. Nothing happened.
I discovered the "Clr cmos" button on the back of the motherboard. When I press it, my computer gets power for maybe half a second, and then nothing. Wonder if it can help.
EDIT2: I took the motherboard out of the case, and I tried powering it with only the ram, PSU and CPU. Didn't work. I swapped with the rams sockets. Nothing.
I tried doing the paper clip thing to try the PSU. I plugged a case fan to try it. It got power for half a second and then it stopped, again.
Is it possible that I have a faulty piece in my build that scrap my power supplys?